For those wanting to add page numbers to existing PDFs, Smile has released new versions of PDFpen and PDFpenPro, their PDF manipulation software. Version 5.5 adds the capability to put page numbers in either the header or the footer of the page, and the page numbers can start on any page. Visually, page numbers can be aligned left, right, or center, or even inside or outside for facing pages, and they can be formatted as Roman numerals, letters, or Bates Numbering. Also new in this update is initial support for full-screen mode in Mac OS X 10.7 Lion, along with some unspecified bug fixes. ($59.95/$99.95 new, free update, 41.5 MB)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
PDFpen and PDFpenPro 5.5
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